TCampbell

It is not a double exposure. You have two light sources, the flash, and the ambient light. The ambient light is the fire pit and the lights in the background. The tell-tale sign is the light "drag" marks on the fingers of the glove showing the movement of the camera as it caught the ambient light while you were holding the camera for the shot.
You can intentionally make interesting blur/drag light effects by using slower shutter speeds with a flash to freeze the subject while moving the camera to blur the ambient light sources.

wdross Loc: Castle Rock, Colorado

I'm inclined to agree with TCampbell. Although 1/60 of a second seems a little fast for this to happen, it is not unheard of. Almost any flash is going to be 1/1000 of a second or faster. Most can stop the flash at less that a 1/5000 of a second if the flash is close enough to the subject for the sensor to "see" enough light to shut the flash down.this appears to be what happened looking at the rim light off the little girls sweater seen "through" the fingertips of the glove. I almost believe that this is a first curtain shot with flash exposing the glove for about a 1/5000 of a second and the glove dropping down and out of the way for the exposure of the fire. If this is a point and shoot, the manufacture may default the flash for the first curtain because of shutter lag that tends to be greater in a point and shoot. That places the flash closer to the image that the photographer wanted.

MT Shooter Loc: Montana

The fallacy of that theory is that ALL the ambient light sources would exhibit the same motion tracks, most noticeably the firepit itself, not to mention the other outdoor lighting in that shot, and all subjects illuminated by them.

blackest Loc: Ireland

It is puzzling from the exif f2.8 iso 800 1/60th gives an
EV value of 9 Landscapes, city skylines 10 minutes after sunset. Neon lights, spotlighted subjects.
EV 5 suggests subjects lit by camp fires.

The image was processed in lightroom 6.8 which can combine images.
I can't see how you could move the camera fast enough to render the firepit without streaks or the child. There is only 1/60th of a second to do it in.
so it must be 2 exposures either in camera or in lightroom.

https://www.manualslib.com/manual/1060066/Panasonic-Lumix-Dmc-Zs100.html?page=223#manual
can you do this accidentally?

boomer826 Loc: Florida gulf coast

DARK MAGIC !!!

revhen Loc: By the beautiful Hudson

Acceptable scientific proof is reproducability. Can anybody reproduce a similar picture without using post processing?

wdross Loc: Castle Rock, Colorado

I truely think that this is not a double exposure but an unusual happen stance. The ambient light image would be indicative of a short exposure of 1/60. The flash exposure had to be very short because of the glove, table cloth, and child being close to the camera. That would produce a very short flash exposure. The only question in my mind is did the glove come into the picture at the biginning of the shot or at the end. Right now I am inclined to believe it was there a the first curtain rather than the second curtain. Would it be easy to reproduce this 1/60 of a second shot again? I seriously doubt it. But things like this do occur from time to time.

DWU2 Loc: Phoenix Arizona area

I assure you it was not combined either in Lightroom or deliberately via the camera.

DWU2 Loc: Phoenix Arizona area

Here's a number of observations, from enlarging to 100%:
- The glove is slightly blurred, while the companion glove on the table is not.
- There are light streaks and flame effects near the finger tips which are not as obvious as the flames near the knuckles.
- Note the series of dots in three places, including a series that resembles antlers on the woman in the wool hat.

Does this point to an explanation?

aflundi Loc: Albuquerque, NM

If you look closely, you can see that the "motion tracks" aren't motion tracks at all. They are clearly rim lighting from the fire on the girl's knit glove. You can see the same fire-produced rim lighting above and below the "ghost" leather glove.

wdross Loc: Castle Rock, Colorado

You are correct. I mentioned this before but I'm not sure how many have really looked. There is very little movement in the ambient image of the shot and indicative of the 1/60 shutter speed. The only thing that I don't know is whether it is a rear curtain shot or a front curtain shot for the flash. Rear curtain is usually the normal setup, but this seems to be more likely to happen with a rear curtain setup.